Improvement in hay and lime elevators



A. 8v G. D. THO-MAS. HAY AND LIME ELEVATOR;

No. 102,729. Patented May 3, 1870.

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ABRAHAM THOMAS AND GEORGE D. THOMAS, Oli -S"l-. THOMAS, PENN-- SYLVANIA.

Letters Patent No. 102, 729, dated May 3, 1870.

IMPROVEMENT IN HAY AND LIME ELEVATORS.

The Schedule referred to in these Letters Patent'and making part of .thesame To all whom it may concern:

Be it known that we, ABRAHAM THOMAS and GEORGE THoMAs, of St. Thomas, inthe county of Franklin and in the State of Pennsylvania, have inventedcertain new and useful Improvements in same, we will 'now proceed todesciibeits construction and operation, referring to the annexeddrawings, in which Figure l is a side view of our elevator, the carriagebeing in section, and

Figure '2 is a transverse vertical sect-ion of the tub or bucket. Arepresents the elevating-carriage, provided on its inside with tworollers a a, which rest upon and move on the beam B supporting thecarriage.

On the under side of the beam B is a transverse 'bar, 0, against whichthe carriage stops.

In the lower end of the carriage A is an inclined passage, D, open atboth ends, the lower end being wider than the upper.

In the lower rear end of the carriage is attached a' rope, I), whichpasses over a pulley, d, in a post, E, which projects downward from thebeam B, said rope being, at its end, provided with a weight,.G, for thepurpose of drawing back the carriage against the bar 0'.

In the carriage, in rear of the passage D, is attached the hoisting-ropee, which passes down around a pulley-block, H, to which the hay-forkorthebucket is attached.

The rope c then passes up around a pulley, f, in the carriage in frontof the passage D, thence around a pulley, g, in a, post, I, projectingdownward from the other end of the beam B.

From this point the rope 0 passes back again through a pulley-block, J,and down to the power employed for hoisting.

From the upper end of the pulley-block H projects a metal loop, 71,which, when the load is hoisted up, projects through the passage 1), andstrikes a weigh ted lever, K, causing the same to rise and push an arm,

0', through the loop It, across the tonend of said passage, thussuspending the load on the same.

The lever K is bent, and pivoted in the carriage A, its longer arm beingweighted at its rear end, and its smaller front end, which is bentdownward, having the arm i pivoted to it.

When no load is on the arm i, the weighted end of the lever falls down,'so. that its angle, that is, the angle of the bent lever, will projectinto'a notch, it, out in the lower side of the beam B at a suitablepoint to prevent the carriage from moving on the beam while the load isbeing hoisted.

When the lever K has been raised, as above set forth, and its anglereleased from the notch k, the car riage moves to the other end of thebeam B, it being, of cou'rse,.understood that the power is still beingapplied to the hoisting-rope.

At the front end of the beamB is pivoted a hook, L, the rear hooked endof which falls down in the position shown in fig. 1.

\Vhen the carriage reaches the hookL, therear end of the hook presses onthe upper side of the lever K, causing its rear weighted end to dropdown the angle of the lever fitting into a recess on the under side ofthe beam made for that purpose.-

This downward motion of the weighted end of the lever K draws back thearm 1', soas to release the load, and, at the same time, the hook Lcatches on a pin, m, in the carriage, holding the same at that end ofthe beam.

The load can then be allowed to descend to the place where wanted, whenthe fork. or bucket is again drawn up, so that the loop or bail h willstrike, and raise the lever K, iu-the same manner as above described.

A shoulder, a, on-said lever at the same time releases the hook L fromthe pin m, and the weight G will draw the carriage back again to thestarting point.

Near the transverse bar 0, on-the under side of the beam B, is a beveledbar, M, which strikes the weighted end of the lever K, releasing the arm5 from the loop 71-, to allow the fork or bucket to descend, and, at thesame time, let the angle of the lever projectinto the notch It.

For elevating 'hay, grain, and such articles, any

suitable hay-fork maybe used; but, for lime, brick, .or such articles,-a tub or bucket, constructed in the following manner, is used.

N represents the bucket, having inclined ends, so

that it is wider at the top than at the bottom. I In the center of thesides, near the bottom, are pivoted arms, 0 O, which are connected abovethe bucket by a cross-bar, I.

In a mortise on one of the arms 0 is pivoted a dog or pawl, p, which isforced into a notch in the edge of the side of the bueket'by a spring,r, as shown in fig.

1, said dog being withdrawn when desired. by thetripq'ope S, causing thebucket to trip over, and

empty the load. the cross-bar I.

" Having thus fully described our invention.

What we claim as new, and desire to secure by Let-' ters Patent, is-- 1.In combination with the lever K and arm '5, the

The pulley-block H is hooked to beveled bar M, and notch k,substantially as end for v the purposes herein set forth.

2. In combination with the lever K, with its shoul der n and arm z, thehook L, and pin m, substantially as and for the purposes herein setforth.

3. The OOIl'lbll'ltlt'iOll of the beam B, with its arms E and I, andlatch L, with the carriage A, with weighted lever K, arm. 45, opening D,beveled bar M, and pulley. H, with bail h, all being constructed andoperated substantially as set forth.

In testimony that we claim the foregoing, we ha e hereunto set ourhands, this 7 th day of March, 1870, ABRAHAM THOMAS.

GEORGE D. THOMAS,

Witnesses:

LOGAN KENNEDY, W. H. SELLER.

